64461333 has 4 divisors (see below), whose sum is σ = 85948448. Its totient is φ = 42974220.

The previous prime is 64461329. The next prime is 64461349. The reversal of 64461333 is 33316446.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 64461333 - 2² = 64461329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64461333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64461233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10743553 + ... + 10743558.

It is an arithmetic number, because the mean of its divisors is an integer number (21487112).

Almost surely, 2^64461333 is an apocalyptic number.

It is an amenable number.

64461333 is a deficient number, since it is larger than the sum of its proper divisors (21487115).

64461333 is a wasteful number, since it uses less digits than its factorization.

64461333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21487114.

The product of its digits is 15552, while the sum is 30.

The square root of 64461333 is about 8028.7815389385. The cubic root of 64461333 is about 400.9588102874.

Adding to 64461333 its reverse (33316446), we get a palindrome (97777779).

The spelling of 64461333 in words is "sixty-four million, four hundred sixty-one thousand, three hundred thirty-three".